28571080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6553}}^1$

素因数の和:6673

約数の個数: 32

約数和(自身を含む): 64884600

約数和(自身を除く): 36313520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6553, 13106, 26212, 32765, 52424, 65530, 131060, 262120, 714277, 1428554, 2857108, 3571385, 5714216, 7142770, 14285540, 28571080]

約数ペア:

[(1, 28571080), (2, 14285540), (4, 7142770), (5, 5714216), (8, 3571385), (10, 2857108), (20, 1428554), (40, 714277), (109, 262120), (218, 131060), (436, 65530), (545, 52424), (872, 32765), (1090, 26212), (2180, 13106), (4360, 6553)]